The longer the loop of Henle descends into the medulla, the more concentrated the urine will be. On the first half of the loop of Henle water is reabsorbed more than the solutes so if the loop is longer, then the urine will be more concentrated.
The insecticide must have contain strong, active chemicals that are poisonous and harmful to owls which resulted in their demise while on the other hand, grass hopper or mice may be resistant/ or tolerant to that chemicals that's why it don't have effect on them.
<u>Photosynthesis</u> is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities.
